<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div class="wrap">
        <div class="top"></div>
        <div class="main">
            <div class="left"></div>
            <div class="content"></div>
            <div class="right"></div>
        </div>
        <div class="bottom"></div>
    </div>
</body>
<style>
    .main {
        width: 100%;
        height: 500px;
        position: relative;
    }

    .main .left {
        float: left;
        background: green;
        width: 100px;
        height: 100%;
    }

    .main .content {
        position: absolute;
        background: pink;
        width: 700px;
        height: 100%;
        left: 150px;
    }

    .main .right {
        float: right;
        background: green;
        width: 100px;
        height: 100%;
    }

    .wrap {
        margin: 0 auto;
        width: 1000px;
        border: 1px solid #000;
    }

    .top {
        background: red;
        width: 100%;
        height: 100px;
    }

    .bottom {
        background: red;
        width: 100%;
        height: 100px;
    }
</style>

</html>